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8329 FATHOM CIR, AUSTIN, TX 78750

AUSTIN, 78750 — williamson County

6 bed4 bath1,092 sqftBuilt 1977

Property at a Glance

This home is estimated between $174,516 and $458,102, with a best estimate of $317,631. That places the property below the R371X - Round Rock West Below 45 - Duplex median of $419,343, in a neighborhood that declined 8.8% over the past year.

Estimated Value Range

$174,516 $458,102
Best Estimate
$317,631
WCAD Value
$455,911
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in R371X - Round Rock West Below 45 - Duplex, this home's estimated market value is between $174,516 and $458,102. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8331 FATHOM CIR, AUSTIN, TX 78750
0.01 mi 100% similar Same subdivision
5 bed 4 bath 1,664 sqft Built 1977
Raw Value $438,156
Adjusted Value $317,631

Adjusted -$120,525 for 572 sqft less living space. Net adjustment: -$120,525.

8335 FATHOM CIR, AUSTIN, TX 78750
0.04 mi 100% similar Same subdivision
5 bed 4 bath 1,560 sqft Built 1979
Raw Value $514,276
Adjusted Value $407,398

Adjusted -$98,611 for 468 sqft less living space and -$8,267 for being older. Net adjustment: -$106,878.

8333 FATHOM CIR, AUSTIN, TX 78750
0.03 mi 97% similar Same subdivision
5 bed 5 bath 1,660 sqft Built 1979
Raw Value $586,051
Adjusted Value $458,102

Adjusted -$119,682 for 568 sqft less living space and -$8,267 for being older. Net adjustment: -$127,949.

8325 FATHOM CIR, AUSTIN, TX 78750
0.03 mi 92% similar Same subdivision
4 bed 4 bath 2,236 sqft Built 1978
Raw Value $434,312
Adjusted Value $189,129

Adjusted -$241,050 for 1,144 sqft less living space and -$4,133 for being older. Net adjustment: -$245,183.

8327 FATHOM CIR, AUSTIN, TX 78750
0.02 mi 90% similar Same subdivision
4 bed 4 bath 2,472 sqft Built 1978
Raw Value $469,426
Adjusted Value $174,516

Adjusted -$290,777 for 1,380 sqft less living space and -$4,133 for being older. Net adjustment: -$294,910.

The Neighborhood

This home is valued 8.7% above the R371X - Round Rock West Below 45 - Duplex median of $419,343. With 462 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.8% over the past year.

R371X - Round Rock West Below 45 - Duplex

typical
462 Properties
$419,343 Median Value
-8.8% YoY Change
0% Have Pool
94% Have Garage
This Home
$455,911
Median
$419,343

This home is +8.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,896 across all districts. With a homestead exemption claimed, that drops to $7,084 — saving $1,812 per year. That's $590 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,072
AustinCity0.5240%$2,389
Williamson CountyCounty0.3694%$1,684
Austin Community Collegespecial0.1034%$471
Williamson County FM/RdCounty0.0443%$202
Upper Brushy Creek WCIDWater0.0170%$78
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$8,896

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $317,631 would pay approximately $1,983 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

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